/* ============================================
   上海邻集网络科技有限公司 - 官网样式 v3
   参考风格：legaltech.cc
   配色：深企业蓝 #1a3a7e + 金色强调 #c8932a
   ============================================ */

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --c-primary: #1a3a7e;
    --c-primary-light: #2e60bb;
    --c-primary-dark: #0d2554;
    --c-primary-rgb: 26, 58, 126;
    --c-accent: #c8932a;
    --c-accent-light: #e0ad3d;
    --c-accent-rgb: 200, 147, 42;
    --c-dark: #0d1f3d;
    --c-dark-2: #142a52;
    --c-text: #333;
    --c-text-light: #666;
    --c-text-muted: #999;
    --c-border: #e0e0e0;
    --c-border-light: #f0f0f0;
    --c-bg: #fff;
    --c-bg-alt: #f6f8fc;
    --font: "Microsoft Yahei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html, body { width: 100%; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    font: 15px/1.7 var(--font);
    color: var(--c-text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

ul, li { list-style: none; }
a, a:hover { text-decoration: none; color: inherit; }
img { border: none; max-width: 100%; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, select, textarea { font-family: inherit; }

::selection { background: var(--c-primary); color: #fff; }

.skip-link {
    position: absolute; top: -100px; left: 0;
    background: var(--c-primary); color: #fff;
    padding: 0.625rem 1.25rem; z-index: 9999;
    transition: top 0.2s;
}
.skip-link:focus { top: 0; }

.container { width: 1140px; max-width: 100%; margin: 0 auto; position: relative; padding: 0 15px; }

/* ============================================
   Top Navigation
   ============================================ */
.top_nav {
    position: fixed; top: 0; width: 100%; z-index: 999;
    transition: all .4s ease-in-out;
    background: transparent;
    padding: 0;
}
.top_nav.NavBg {
    background: rgba(13, 31, 61, 0.92);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.site_logo {
    float: left;
    margin-left: 40px;
    padding: 18px 0;
    display: flex;
    align-items: center;
}
.logo-img {
    height: 42px;
    width: auto;
    display: block;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-cn { font-size: 1.05rem; font-weight: 700; color: #fff; }
.logo-en { font-size: 0.65rem; letter-spacing: 1px; color: rgba(255, 255, 255, 0.6); }

.top_link { float: right; margin-right: 40px; }
.top_link ul { float: right; }
.top_link li { float: left; }
.top_link a {
    color: #fff; font-size: 14px;
    display: inline-block;
    padding: 22px 16px 12px;
    text-align: left;
    transition: all .4s ease-in-out;
}
.top_link a span { display: block; font-size: 11px; opacity: 0.7; }
.top_link a:hover { color: var(--c-accent-light); }
.NavBg .top_link a { padding: 14px 16px 10px; }
.NavBg .top_link a:hover { background: var(--c-primary); color: #fff; }
.NavBg .top_link li.current a { color: #fff; background: var(--c-primary); }
.NavBg .site_logo { padding: 12px 0; }

/* Mobile toggle */
.menu-toggle {
    display: none;
    flex-direction: column; gap: 5px;
    padding: 8px;
    position: absolute; top: 18px; right: 20px; z-index: 1001;
}
.menu-toggle span {
    width: 24px; height: 2.5px;
    background: #fff; border-radius: 2px;
    transition: all .3s;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Nav Hotline */
.nav-hotline {
    float: right;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 40px;
    padding: 15px 0;
    color: #fff;
    font-size: 12px;
    line-height: 1.3;
    text-align: right;
    transition: all .3s ease;
}
.nav-hotline i { font-size: 18px; color: var(--c-accent-light); }
.nav-hotline strong { font-size: 17px; letter-spacing: 0.5px; }
.nav-hotline:hover { color: var(--c-accent-light); }
.NavBg .nav-hotline { padding: 11px 0; }

/* Mobile Hotline (in mobile menu) */
.mobile-hotline {
    display: block;
    margin: 15px 20px;
    padding: 14px 18px;
    background: var(--c-primary);
    color: #fff;
    font-size: 15px;
    border-radius: 6px;
    text-align: center;
    letter-spacing: 0.5px;
}
.mobile-hotline i { margin-right: 6px; }
.mobile-hotline strong { font-size: 18px; }

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed; top: 0; right: 0; bottom: 0;
    width: 260px; background: var(--c-dark);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform .4s ease-in-out;
    overflow-y: auto;
    padding-top: 70px;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu li { border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.mobile-menu a {
    display: block; padding: 16px 24px;
    color: #fff; font-size: 16px;
}
.mobile-menu a span { font-size: 12px; margin-left: 8px; opacity: 0.5; }
.mobile-menu a:hover, .mobile-menu a:active { background: var(--c-primary); }

/* ============================================
   Home / Hero
   ============================================ */
#home {
    height: 100vh; min-height: 600px;
    width: 100%;
    display: table;
    text-align: center;
    color: #fff;
    position: relative;
    background:
        linear-gradient(135deg, rgba(13, 37, 84, 0.82) 0%, rgba(26, 58, 126, 0.65) 45%, rgba(var(--c-accent-rgb), 0.2) 100%),
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="900" viewBox="0 0 1440 900"><defs><linearGradient id="g1" x1="0" y1="0" x2="0" y2="1"><stop offset="0" stop-color="%231a3a7e"/><stop offset="1" stop-color="%230d2554"/></linearGradient></defs><rect width="1440" height="900" fill="url(%23g1)"/><g opacity="0.12"><circle cx="200" cy="150" r="3" fill="white"/><circle cx="500" cy="80" r="2" fill="white"/><circle cx="800" cy="200" r="4" fill="white"/><circle cx="1100" cy="100" r="2" fill="white"/><circle cx="1300" cy="250" r="3" fill="white"/><circle cx="150" cy="400" r="2" fill="white"/><circle cx="400" cy="350" r="3" fill="white"/><circle cx="700" cy="450" r="2" fill="white"/><circle cx="1000" cy="380" r="4" fill="white"/><circle cx="1200" cy="500" r="2" fill="white"/><circle cx="300" cy="600" r="3" fill="white"/><circle cx="600" cy="700" r="2" fill="white"/><circle cx="900" cy="650" r="3" fill="white"/><circle cx="1150" cy="750" r="2" fill="white"/></g><g opacity="0.06" fill="none" stroke="white" stroke-width="1"><path d="M0,700 Q360,600 720,650 T1440,600"/><path d="M0,750 Q360,680 720,720 T1440,680"/><path d="M0,800 Q360,750 720,780 T1440,750"/></g></svg>');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.home_container {
    display: table-cell;
    vertical-align: middle;
    padding: 80px 15px;
}

.home_content {
    max-width: 800px;
    margin: 0 auto;
}

.home_logo {
    margin-bottom: 40px;
}
.home_logo_icon {
    display: inline-block;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.9);
    padding: 12px 32px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 4px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.06);
}

.chn_txt {
    font-size: 46px;
    font-weight: 700;
    text-shadow: 1px 1px 10px rgba(0, 0, 0, 0.5);
    line-height: 1.3;
    max-width: 90%;
    margin: 0 auto;
}

.eng_txt {
    font-size: 20px;
    font-weight: 300;
    text-shadow: 1px 1px 10px rgba(0, 0, 0, 0.5);
    max-width: 90%;
    margin: 20px auto 40px;
    opacity: 0.85;
    letter-spacing: 1px;
}

/* Home Stats */
.home-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    margin-top: 20px;
}
.home-stat {
    text-align: center;
    padding: 0 30px;
}
.home-stat-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--c-accent-light);
    line-height: 1.2;
    text-shadow: 1px 1px 10px rgba(0, 0, 0, 0.3);
}
.home-stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
}
.home-stat-divider {
    width: 1px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
}

/* Scroll hint */
.scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-size: 28px;
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 0 30px;
    line-height: 2.8em;
    border-radius: 2px;
    transition: all .5s;
    font-size: 13px;
    letter-spacing: 1px;
    cursor: pointer;
    text-transform: uppercase;
}
.read-more-btn {
    background: var(--c-primary);
    color: #fff !important;
}
.read-more-btn:hover {
    background: var(--c-dark);
    color: #fff;
}
.read-more-btn i { margin-left: 6px; transition: margin .3s; }
.read-more-btn:hover i { margin-left: 12px; }

.send-btn {
    background: var(--c-primary);
    padding: 14px 40px;
    border-radius: 2px;
    transition: all .5s;
    color: #fff;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 1px;
    border: 1px solid var(--c-primary);
    width: 100%;
}
.send-btn:hover {
    background: transparent;
    border-color: var(--c-primary);
    color: var(--c-primary);
}
.send-btn i { margin-left: 6px; }

/* ============================================
   Section Common
   ============================================ */
section { padding: 70px 0; text-align: center; }
.section-alt { background: var(--c-bg-alt); }

.section-title {
    margin-bottom: 30px;
}
.section-title h2 {
    font-size: 34px;
    color: #000;
    line-height: 1.2em;
    font-weight: 700;
}
.section-title h2 span {
    display: block;
    font-size: 14px;
    font-weight: normal;
    font-family: Arial, sans-serif;
    letter-spacing: 6px;
    color: var(--c-primary);
    margin-bottom: 8px;
}
.section-title.light h2 { color: var(--c-accent-light); }
.section-title.light h2 span { color: var(--c-accent-light); }

.title_line {
    height: 10px;
    margin-top: 15px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="60" height="10" viewBox="0 0 60 10"><line x1="0" y1="5" x2="24" y2="5" stroke="%231a3a7e" stroke-width="2"/><circle cx="30" cy="5" r="3" fill="none" stroke="%231a3a7e" stroke-width="2"/><line x1="36" y1="5" x2="60" y2="5" stroke="%231a3a7e" stroke-width="2"/></svg>') no-repeat center center;
}
.section-title.light .title_line {
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="60" height="10" viewBox="0 0 60 10"><line x1="0" y1="5" x2="24" y2="5" stroke="%23e0ad3d" stroke-width="2"/><circle cx="30" cy="5" r="3" fill="none" stroke="%23e0ad3d" stroke-width="2"/><line x1="36" y1="5" x2="60" y2="5" stroke="%23e0ad3d" stroke-width="2"/></svg>') no-repeat center center;
}

/* ============================================
   About Section
   ============================================ */
#about { background: #fff; padding: 70px 0 90px; }
.about-content {
    max-width: 900px;
    margin: 0 auto 50px;
}
.about-content p {
    text-align: left;
    font-size: 15px;
    line-height: 2em;
    color: var(--c-text-light);
    text-indent: 2em;
    margin-bottom: 15px;
}
.about-content strong { color: var(--c-primary); font-weight: 600; }

.about-mission {
    display: flex;
    gap: 30px;
    max-width: 1140px;
    margin: 0 auto;
}
.mission-block {
    flex: 1;
    border: 1px solid var(--c-border);
    padding: 40px 25px;
    transition: all .4s;
    text-align: center;
}
.mission-block:hover {
    border-color: var(--c-primary);
    box-shadow: 0 4px 30px rgba(var(--c-primary-rgb), 0.1);
}
.mission-block i {
    color: var(--c-primary);
    margin-bottom: 15px;
}
.mission-block h4 {
    font-size: 18px;
    color: #000;
    margin-bottom: 12px;
    font-weight: 600;
}
.mission-block p {
    font-size: 13px;
    color: var(--c-text-light);
    line-height: 1.8;
    text-align: justify;
}

/* ============================================
   Team Section
   ============================================ */
.team-universities {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 40px;
}
.uni-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border: 1px solid var(--c-border);
    padding: 16px 28px;
    border-radius: 2px;
    transition: all .4s;
}
.uni-badge:hover {
    border-color: var(--c-primary);
    box-shadow: 0 4px 20px rgba(var(--c-primary-rgb), 0.1);
    transform: translateY(-3px);
}
.uni-badge i {
    color: var(--c-primary);
    font-size: 22px;
}
.uni-badge span {
    font-size: 16px;
    font-weight: 600;
    color: var(--c-text);
}

.team-coverage {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--c-border);
    padding: 30px;
    border-radius: 2px;
}
.coverage-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}
.coverage-header i {
    color: var(--c-primary);
    font-size: 20px;
}
.coverage-header span {
    font-size: 16px;
    font-weight: 600;
    color: var(--c-text);
}
.coverage-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}
.coverage-tags span {
    display: inline-block;
    font-size: 14px;
    color: var(--c-primary);
    background: rgba(var(--c-primary-rgb), 0.06);
    border: 1px solid rgba(var(--c-primary-rgb), 0.15);
    padding: 8px 20px;
    border-radius: 20px;
    transition: all .3s;
}
.coverage-tags span:hover {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}

/* ============================================
   Parallax Banner
   ============================================ */
.parallax-banner {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 70px 0;
    text-align: center;
    position: relative;
}
.parallax-overlay {
    position: absolute;
    inset: 0;
}
.parallax-text {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}
.parallax-text p {
    color: #fff;
    font-size: 22px;
    line-height: 1.8;
    text-shadow: 1px 1px 10px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

.parallax-1 {
    background-image:
        linear-gradient(135deg, rgba(13, 37, 84, 0.88), rgba(26, 58, 126, 0.85)),
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="400" viewBox="0 0 1440 400"><rect width="1440" height="400" fill="%230d2554"/><g opacity="0.1" fill="none" stroke="white" stroke-width="1"><circle cx="200" cy="100" r="50"/><circle cx="500" cy="200" r="80"/><circle cx="900" cy="150" r="60"/><circle cx="1200" cy="250" r="70"/><circle cx="350" cy="300" r="40"/><circle cx="750" cy="80" r="30"/><circle cx="1100" cy="350" r="45"/></g></svg>');
}

.parallax-2 {
    background-image:
        linear-gradient(135deg, rgba(13, 37, 84, 0.85), rgba(var(--c-accent-rgb), 0.4)),
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="400" viewBox="0 0 1440 400"><rect width="1440" height="400" fill="%231a3a7e"/><g opacity="0.08" fill="white"><path d="M0,200 Q360,100 720,200 T1440,200 L1440,400 L0,400 Z"/></g></svg>');
}

/* ============================================
   Service Section
   ============================================ */
.service-intro-text {
    max-width: 800px;
    margin: 0 auto 50px;
}
.service-intro-text p {
    font-size: 15px;
    color: var(--c-text-light);
    line-height: 2em;
    text-align: left;
}

.service-row {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}
.service-col { flex: 1; padding: 0 10px; }

.service-card {
    border: 1px solid var(--c-border);
    padding: 50px 25px;
    transition: all .4s ease-in-out;
    text-align: center;
    height: 100%;
    opacity: 0;
    transform: scale(0.8) rotate(5deg);
}
.service-card.active {
    opacity: 1;
    transform: scale(1) rotate(0);
}
.service-card:hover {
    border-color: var(--c-primary);
    padding: 65px 25px;
    box-shadow: 0 4px 30px rgba(var(--c-primary-rgb), 0.12);
    cursor: pointer;
}
.service-card i {
    color: var(--c-primary);
    margin-bottom: 20px;
    transition: transform .4s;
}
.service-card:hover i {
    transform: scale(1.15);
}
.service-tag {
    display: inline-block;
    font-size: 11px;
    color: var(--c-accent);
    background: rgba(var(--c-accent-rgb), 0.1);
    padding: 3px 12px;
    border-radius: 2px;
    margin-bottom: 12px;
    letter-spacing: 1px;
}
.service-card h4 {
    font-size: 18px;
    color: #000;
    margin: 10px 0 15px;
    font-weight: 600;
}
.service-card:hover h4 {
    color: var(--c-primary);
}
.service-card p {
    font-size: 13px;
    color: #555;
    text-align: justify;
    line-height: 1.8;
}

/* Service Details */
.service-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 30px 0;
    border-top: 1px solid var(--c-border-light);
}
.detail-block {
    text-align: center;
    padding: 25px 15px;
    transition: all .3s;
    opacity: 0;
    transform: translateY(20px);
}
.detail-block.active {
    opacity: 1;
    transform: translateY(0);
}
.detail-block:hover {
    background: var(--c-bg-alt);
}
.detail-icon {
    width: 56px; height: 56px;
    margin: 0 auto 12px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--c-primary);
    border-radius: 50%;
    color: var(--c-primary);
    font-size: 20px;
    transition: all .3s;
}
.detail-block:hover .detail-icon {
    background: var(--c-primary);
    color: #fff;
}
.detail-block h5 {
    font-size: 15px;
    color: #000;
    margin-bottom: 8px;
    font-weight: 600;
}
.detail-block p {
    font-size: 12px;
    color: var(--c-text-light);
    line-height: 1.7;
}

/* ============================================
   Government Service Grid (4 columns)
   ============================================ */
.gov-service-grid {
    display: grid;
    gap: 20px;
    margin-bottom: 20px;
}
.gov-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}
.gov-service-item {
    background: #fff;
    border: 1px solid var(--c-border);
    padding: 35px 25px;
    transition: all .4s ease-in-out;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}
.gov-service-item.active {
    opacity: 1;
    transform: translateY(0);
}
.gov-service-item:hover {
    border-color: var(--c-primary);
    box-shadow: 0 4px 30px rgba(var(--c-primary-rgb), 0.12);
    transform: translateY(-4px);
}
.gov-service-icon {
    width: 60px; height: 60px;
    margin: 0 auto 18px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(var(--c-primary-rgb), 0.08);
    border-radius: 50%;
    color: var(--c-primary);
    font-size: 22px;
    transition: all .4s;
}
.gov-service-item:hover .gov-service-icon {
    background: var(--c-primary);
    color: #fff;
    transform: scale(1.1);
}
.gov-service-item h4 {
    font-size: 16px;
    color: #000;
    margin-bottom: 12px;
    font-weight: 600;
    transition: color .3s;
}
.gov-service-item:hover h4 {
    color: var(--c-primary);
}
.gov-service-item p {
    font-size: 13px;
    color: var(--c-text-light);
    line-height: 1.8;
    text-align: justify;
}

/* ============================================
   Advantages Section
   ============================================ */
.advantage-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}
.advantage-col { flex: 1; min-width: 220px; max-width: 300px; padding: 0 10px; }

.advantage-card {
    border: 1px solid var(--c-border);
    padding: 45px 25px;
    transition: all .5s;
    text-align: center;
    height: 100%;
    opacity: 0.7;
    background: #fff;
}
.advantage-card:hover {
    border-color: var(--c-primary);
    opacity: 1;
    box-shadow: 0 4px 30px rgba(var(--c-primary-rgb), 0.1);
}
.advantage-card i {
    color: var(--c-primary);
    margin-bottom: 18px;
    transition: transform .4s;
}
.advantage-card:hover i {
    transform: scale(1.2);
}
.advantage-card h4 {
    font-size: 17px;
    color: #000;
    margin-bottom: 12px;
    font-weight: 600;
}
.advantage-card:hover h4 {
    color: var(--c-primary);
}
.advantage-card p {
    font-size: 13px;
    color: #555;
    line-height: 1.8;
    text-align: justify;
}

/* ============================================
   Mission & Vision Section
   ============================================ */
#mission { background: #fff; padding: 70px 0 90px; }
.mission-vision-grid {
    display: flex;
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}
.mv-card {
    flex: 1;
    padding: 50px 35px;
    text-align: center;
    border-radius: 2px;
    transition: all .4s;
    position: relative;
    overflow: hidden;
}
.mv-mission {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
    color: #fff;
}
.mv-vision {
    background: linear-gradient(135deg, var(--c-dark) 0%, var(--c-dark-2) 100%);
    color: #fff;
}
.mv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(var(--c-primary-rgb), 0.25);
}
.mv-icon {
    margin-bottom: 20px;
    opacity: 0.9;
}
.mv-icon i { color: var(--c-accent-light); }
.mv-tag {
    display: inline-block;
    font-size: 12px;
    color: var(--c-accent-light);
    border: 1px solid rgba(var(--c-accent-rgb), 0.4);
    padding: 4px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
    letter-spacing: 2px;
}
.mv-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 18px;
    line-height: 1.4;
}
.mv-card p {
    font-size: 14px;
    line-height: 2;
    color: rgba(255, 255, 255, 0.8);
    text-align: justify;
}

/* ============================================
   Contact Section (dark)
   ============================================ */
#contactbox {
    background: var(--c-dark);
    color: #fff;
    padding: 80px 0 70px;
    text-align: center;
}
.contact-intro {
    color: rgba(255, 255, 255, 0.6);
    font-size: 15px;
    margin-bottom: 50px;
}

.contact-grid {
    display: flex;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
    text-align: left;
}

.contact-info {
    flex: 1;
}
.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 28px;
}
.contact-item i {
    color: var(--c-accent-light);
    margin-top: 4px;
    width: 24px;
    text-align: center;
}
.contact-item strong {
    display: block;
    font-size: 15px;
    color: #fff;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.contact-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
}
.hotline-link {
    color: var(--c-accent-light);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
    transition: color .3s;
}
.hotline-link:hover { color: #fff; }

.contact-form-wrap {
    flex: 1.3;
}
.contact-form .form-group {
    margin-bottom: 22px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    border-bottom: 2px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 14px;
    transition: all .4s;
    border-radius: 0;
    outline: none;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.35);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-bottom-color: var(--c-accent-light);
    background: rgba(255, 255, 255, 0.08);
}
.contact-form select {
    color: rgba(255, 255, 255, 0.35);
}
.contact-form select option {
    color: #333;
    background: #fff;
}
.contact-form select:valid {
    color: #fff;
}
.contact-form textarea {
    resize: vertical;
    min-height: 80px;
}

.form-success {
    margin-top: 16px;
    padding: 10px;
    color: var(--c-accent-light);
    font-size: 13px;
    text-align: center;
    display: none;
}

/* ============================================
   Footer
   ============================================ */
#footer {
    background: var(--c-dark);
    padding: 50px 0 30px;
    color: #ccc;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-grid {
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand { flex: 2; }
.footer-col { flex: 1; }
.footer-logo {
    margin-bottom: 15px;
}
.footer-logo .logo-img {
    height: 36px;
    width: auto;
}
.footer-logo-text {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}
.footer-brand p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.7;
}
.footer-col h5 {
    font-size: 14px;
    color: #fff;
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.footer-col ul li {
    margin-bottom: 8px;
}
.footer-col a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    transition: all .3s;
}
.footer-col a:hover {
    color: var(--c-accent-light);
    padding-left: 4px;
}
.footer-bottom {
    text-align: center;
}
.footer-bottom p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
}
.footer-bottom p.icp {
    margin-top: 6px;
}
.footer-bottom p.icp a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: color 0.3s ease;
}
.footer-bottom p.icp a:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* Footer Friendly Links */
.footer-links {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px 0;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.footer-links-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}
.footer-links a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.3s ease;
}
.footer-links a:hover {
    color: var(--c-accent-light);
}
.footer-links a:not(:last-child)::after {
    content: " |";
    margin-left: 16px;
    color: rgba(255, 255, 255, 0.15);
}

/* ============================================
   Back to Top
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px; right: 30px;
    width: 44px; height: 44px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 2px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all .4s;
    z-index: 998;
    box-shadow: 0 4px 20px rgba(var(--c-primary-rgb), 0.3);
}
.back-to-top.visible {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.back-to-top:hover {
    background: var(--c-primary-dark);
}

/* ============================================
   Scroll Animations
   ============================================ */
#about .container,
#team .container,
#enterprise .container,
#government .container,
#agri .container,
#advantages .container,
#mission .container,
#contactbox .container {
    opacity: 0;
    transition: opacity 1.5s;
}
#about .container.active,
#team .container.active,
#enterprise .container.active,
#government .container.active,
#agri .container.active,
#advantages .container.active,
#mission .container.active,
#contactbox .container.active {
    opacity: 1;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .8s, transform .8s;
}
.fade-in.active {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1200px) {
    .container { width: 100%; }
    .about-mission { flex-wrap: wrap; }
    .mission-block { min-width: 45%; }
    .gov-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .top_link a { padding: 22px 12px 12px; font-size: 13px; }
}

@media (max-width: 968px) {
    .top_link { display: none; }
    .nav-hotline { display: none; }
    .menu-toggle { display: flex; }
    .mobile-menu { display: block; }
    .site_logo { margin-left: 20px; }

    .chn_txt { font-size: 34px; }
    .eng_txt { font-size: 16px; margin-bottom: 40px; }
    .home_logo_icon { font-size: 18px; padding: 10px 20px; }
    .home-stat { padding: 0 20px; }
    .home-stat-num { font-size: 34px; }

    .service-row { flex-direction: column; }
    .service-col { padding: 0; margin-bottom: 15px; }
    .service-card { padding: 35px 20px; }
    .service-card:hover { padding: 45px 20px; }

    .service-details { grid-template-columns: repeat(2, 1fr); }

    .advantage-row { flex-direction: column; align-items: center; }
    .advantage-col { padding: 0; margin-bottom: 15px; max-width: 500px; }

    .mission-vision-grid { flex-direction: column; }

    .contact-grid { flex-direction: column; gap: 40px; }

    .footer-grid { flex-direction: column; gap: 25px; }
    .footer-brand { flex: none; }

    .about-mission { flex-direction: column; }
    .mission-block { min-width: 100%; }

    #home { background-attachment: scroll; }
    .parallax-banner { background-attachment: scroll; }

    .gov-grid-4 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    section { padding: 50px 0; }
    .section-title h2 { font-size: 24px; }
    .section-title h2 span { font-size: 12px; letter-spacing: 4px; }

    .home_logo_icon { font-size: 15px; padding: 8px 16px; }
    .chn_txt { font-size: 26px; }
    .eng_txt { font-size: 13px; }
    .home-stat-num { font-size: 28px; }
    .home-stat-label { font-size: 12px; }
    .home-stat { padding: 0 15px; }

    .about-content p { font-size: 14px; }
    .about-content { margin-bottom: 35px; }

    .service-details { grid-template-columns: 1fr; }

    .uni-badge { padding: 12px 20px; }
    .uni-badge span { font-size: 14px; }

    .coverage-tags span { font-size: 13px; padding: 6px 16px; }

    .mv-card { padding: 35px 20px; }
    .mv-card h3 { font-size: 18px; }
    .mv-card p { font-size: 13px; }

    .back-to-top { bottom: 20px; right: 20px; width: 38px; height: 38px; }

    .container { padding: 0 18px; }

    .parallax-text p { font-size: 16px; letter-spacing: 1px; }
}

@media (max-width: 380px) {
    .chn_txt { font-size: 22px; }
    .home-stats { flex-direction: column; gap: 15px; }
    .home-stat-divider { width: 40px; height: 1px; }
    .mission-vision-grid { gap: 20px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    #home { background-attachment: scroll; }
    .parallax-banner { background-attachment: scroll; }
}

@media print {
    .top_nav, .back-to-top, .scroll-hint, .menu-toggle, .mobile-menu { display: none; }
    #home { height: auto; min-height: auto; }
    body { color: #000; background: #fff; }
}